U.S. patent application number 12/311770 was filed with the patent office on 2010-02-11 for wide back flange hanger.
Invention is credited to Jin-Jie Lin.
Application Number | 20100031601 12/311770 |
Document ID | / |
Family ID | 39314524 |
Filed Date | 2010-02-11 |
United States Patent
Application |
20100031601 |
Kind Code |
A1 |
Lin; Jin-Jie |
February 11, 2010 |
Wide back flange hanger
Abstract
A hanger for supporting a held member from a holding member is
provided with a seat member adapted for supporting the held member,
first and second side members connected to the seat member, the
first and second side members having lower portions and upper
portions, the lower portions of the first and second side members
each having inner an face and an outer face with the inner faces
facing each other, and the upper portions of the first and second
side members being connected to first and second back flanges
respectively, the upper portions of the first and second side
members each having an inner face and an outer face, and the first
and second back flanges being adapted to be connected to the
holding member by a plurality of fasteners, wherein the inner faces
of the lower portions of the first and second side members and the
inner faces of the upper portions of the first and second side
members form reflex angles with each other.
Inventors: |
Lin; Jin-Jie; (Livermore,
CA) |
Correspondence
Address: |
JAMES R. CYPHER
405 14TH STREET, SUITE 1607
OAKLAND
CA
94612
US
|
Family ID: |
39314524 |
Appl. No.: |
12/311770 |
Filed: |
October 18, 2006 |
PCT Filed: |
October 18, 2006 |
PCT NO: |
PCT/US06/40853 |
371 Date: |
April 10, 2009 |
Current U.S.
Class: |
52/712 ;
52/696 |
Current CPC
Class: |
E04B 1/2612
20130101 |
Class at
Publication: |
52/712 ;
52/696 |
International
Class: |
E04B 1/38 20060101
E04B001/38 |
Claims
1. A hanger comprising: a. a seat member adapted for supporting a
held member, having first and second side portions; b. a first side
member connected to a first side portion of the seat member, the
first side member having a lower portion and an upper portion, and
the lower portion of the first side member being connected to the
first side portion of the seat member, the lower portion of the
first side member having an inner face and an outer face; c. the
upper portion of the first side member being connected to a first
back flange, the upper portion of the first side member having an
inner face and an outer face; d. the first back flange being
adapted to be connected to a supporting member by a plurality of
fasteners e. a second side member connected to a first side portion
of the seat member, the second side member having a lower portion
and an upper portion, and the lower portion of the second side
member being connected to the second side portion of the seat
member, the lower portion of the second side member having an inner
face and an outer face, the inner face of the second side member
being disposed towards the inner face of the first side member; f.
the upper portion of the second side member being connected to a
second back flange, the upper portion of the second side member
having an inner face and an outer face, the inner face of the upper
portion of the second side member being disposed towards the inner
face of the upper portion of the first side member; g. the second
back flange being adapted to be connected to the supporting member
by a plurality of fasteners, the second back flange being separate
from the first back flange; wherein h. the inner face of the lower
portion of the first side member and the inner face of the upper
portion of the first side member form a reflex angle and the inner
face of the lower portion of the second side member and the inner
face of the upper portion of the second side member form a reflex
angle.
2. The hanger of claim 1, wherein: the first and second back
flanges are not directly connected to each other.
3. The hanger of claim 1, wherein: a. the first back flange is
formed with an exposed face and a registration face; b. the second
back flange is formed with an exposed face and a registration face;
c. the exposed face of the first back flange and the inner face of
the upper portion of the first side member form a right angle of 90
degrees that is bounded by the inner face of the upper portion of
the first side member and is bounded by the exposed face of the
first back flange, and d. the exposed face of the second back
flange and the inner face of the upper portion of the second side
member form a right angle of 90 degrees that is bounded by the
inner face of the upper portion of the second side member and is
bounded by the exposed face of the second back flange.
4. The hanger of claim 3, wherein: a. the first side member is
integrally connected to a first side edge of the seat member, and
b. the second side member is integrally connected to a second side
edge of the seat member.
5. The hanger of claim 4, wherein: openings are provided in the
lower portions of the first and second side members which are
adapted to receive fasteners for attachment of the hanger to the
held member.
6. The hanger of claim 5, wherein: the lower portions of the first
and second side members form a generally orthogonal angle with the
seat member, and are generally parallel to each other.
7. The hanger of claim 6, wherein: the first and second side
members extend a substantial distance above the seat member
providing substantial lateral support to the supported member.
8. The hanger of claim 7, wherein: a. the first and second side
members have transverse bends that divide the first and second side
member into upper and lower portions, and b. the upper portions of
the first and second side members extend a substantial distance
above the transverse bends that separate the upper portions of the
first and second side member from the lower portions of the first
and second side members.
9. The hanger of 8, wherein: a. the upper portions of the first and
second side members span a width; b. the lower portion of the first
and second side members span a second width, and c. the width
between the upper portion of the first and second side members is
greater than the width between the lower portions of the first and
second side members.
10. The hanger of 9, wherein: the first and second back flanges are
only attached to the first and second side members at the upper
portions of the first and second side members above the transverse
bend lines.
11. The hanger of claim 1, wherein: a. the hanger is attached to a
holding member by means of fasteners driven through the first and
second back flanges into the holding member, and b. the seat member
of the hanger supports a held member.
12. The hanger of claim 11, wherein: the holding member is a
vertically elongated member that is part of a larger supporting
member.
13. The hanger of claim 12, wherein: the fasteners are
self-drilling, threaded fasteners.
Description
BACKGROUND OF THE INVENTION
[0001] This invention relates to sheet metal hangers which are used
to connect a held or supported member to a holding or supporting
member, which are often specifically a joist or truss member
connected to a truss or girder member.
[0002] Structural engineers sometime prefer that hangers for
trusses be connected to the vertical members of the truss, rather
than the bottom chord which is in tension. There are various
hangers which have a seat for supporting the held member,
vertically disposed side members for providing lateral support to
the held member and one or more back flanges disposed between the
width defined by the first and second side members provided with a
plurality of openings for attaching the hanger to the narrow
vertical web of the supporting truss member.
[0003] The present invention provides a hanger that can have first
and second side members having portions that are spaced relatively
close together while having first and second back flanges disposed
between portions of the first and second side flanges that are
relatively wide and allow for optimal spacing of fasteners used to
attach the hanger to the relatively narrow vertical web of the
supporting truss.
SUMMARY OF THE INVENTION
[0004] This application teaches the construction of hanger for
connecting a joist or supported truss member to a supporting truss
or girder.
[0005] The application teaches a hanger for supporting a held
member from a holding member that is provided with a seat member
adapted for supporting the held member, first and second side
members connected to the seat member, the first and second side
members having lower portions and upper portions, the lower
portions of the first and second side members each having inner an
face and an outer face with the inner faces facing each other, and
the upper portions of the first and second side members being
connected to first and second back flanges respectively, the upper
portions of the first and second side members each having an inner
face and an outer face, and the first and second back flanges being
adapted to be connected to the holding member by a plurality of
fasteners, wherein the inner faces of the lower portions of the
first and second side members and the inner faces of the upper
portions of the first and second side members form reflex angles
with each other.
[0006] By forming a reflex bend in the first and second side member
between the inner side faces of the upper and lower portions of the
first and second side members, the hanger can be formed with first
and second side members having lower portions that are spaced
relatively close together to provide support to a narrow supported
member, while having inwardly bent back flange members that are
connected to the upper portions of the first and second side
members and that have lower portions that are disposed between the
upper portions of the first and second side members and those lower
portions of the first and second back flanges between the upper
portions of the first and second side flanges span a width that is
greater than the width between the lower portions of the first and
second side members, allowing those lower portions of the back
flange members to be relatively wide without having to overlap each
other, and which also makes it easier to adequately space multiple
fasteners in the lower portions of the back flange members.
[0007] In the preferred form the hanger is formed with a continuous
single seat. In the preferred form, the hanger is made from a
single blank of sheet metal and is formed by bending the blank into
its three dimensional form. In the preferred form, the hanger is
made from galvanized sheet steel and requires no welding in its
fabrication or painting for protection.
BRIEF DESCRIPTION OF THE FIGURES
[0008] FIG. 1 is a perspective view of the hanger of the present
invention.
[0009] FIG. 2 is a perspective view of the hanger of the present
invention connecting a supported member to a supporting member.
[0010] FIG. 3 is a front elevation of the hanger shown in FIG.
1.
[0011] FIG. 4 is a left side view of the hanger shown in FIG. 3
taken along line 4-4.
[0012] FIG. 5 is a top view of the hanger shown in FIG. 2.
DETAILED DESCRIPTION OF THE INVENTION
[0013] As shown in FIG. 2, this invention comprises a hanger 1 for
connecting a held or supported member 2 to a holding or support
member 3.
[0014] As shown in FIGS. 1 and 2, in the preferred embodiment of
the present invention, the hanger 1 consists of a seat member 4
adapted for supporting the held or supported member 2. A first side
portion 5 of the seat member 4 is connected to a lower portion 9 of
a first side member 7. An upper portion 11 of the first side member
7 is connected to a first back flange 13. The first back flange 13
is adapted to be connected to the supporting member 3 by one or
more fasteners 15. A second side portion 6 of the seat member 4 is
connected to a lower portion 10 of a second side member 8. An upper
portion 12 of the second side member 8 is connected to a second
back flange 14. The second back flange 14 is adapted to be
connected to the supporting member 3 by one or more fasteners
15.
[0015] As shown in FIG. 1, in the preferred embodiment, the hanger
1 consists of a continuous, non-overlapped single seat member 4. In
the preferred embodiment, the first side member 7 is integrally
connected to a first side edge 43 of the seat member 4. In the
preferred embodiment, the second side member 8 is integrally
connected to a second side edge 44 of the seat member 4.
[0016] As shown in FIG. 3, in the preferred embodiment, the lower
portion 9 of the first side member 7 is formed with an outer face
19 disposed away from the supported member 2 and the lower portion
9 of the first side member 7 is formed with an inner face 17 that
is disposed toward the supported member 2. In the preferred
embodiment, the lower portion 9 of the first side member 7 is
adapted so that at least portions of the inner face 17 of the lower
portion 9 of the first side member 7 register with portions of a
first side face 21 of the supported member 2.
[0017] In the preferred embodiment, the lower portion 10 of the
second side member 8 is formed with an outer face 20 disposed away
from the supported member 2 and the lower portion 10 of the second
side member 8 is formed with an inner face 18 that is disposed
toward the supported member 2. In the preferred embodiment, the
lower portion 10 of the second side member 8 is adapted so that at
least portions of the inner face 18 of the lower portion 10 of the
second side member 8 register with portions of a second side face
22 of the supported member 2.
[0018] As shown in FIG. 1, in the preferred embodiment, openings 45
are provided in the lower portions 9 and 10 of the first and second
side members 7 and 8 to receive fasteners 16 for attachment of the
hanger 1 to the carried or supported member 2. In the preferred
embodiment, the fasteners 16 for attaching the first and second
side members 7 and 8 to the supported member 2 are self-drilling,
threaded fasteners. Also, preferably, these fasteners 16 are each
formed with a head 46, and when the fasteners 16 are driven into
the supported member 2 the heads 46 of the fasteners 16 abut
against the outer faces 19 and 20 of the lower portions 9 and 10 of
the first and second side members 7 and 8 and the inner faces 17
and 18 of the lower portions 9 and 10 of the first and second side
members 7 and 8 are pulled by the driving of the fasteners 16
towards the first and second side faces 21 and 22 of the supported
member 2.
[0019] As shown in FIG. 3, in the preferred embodiment, the lower
portions 9 and 10 of the first and second side members 7 and 8 form
a generally orthogonal angle with the seat member 4, and are
generally parallel to each other with the inner faces 17 and 18 of
the lower portions 9 and 10 of the first and second side members 7
and 8 disposed towards each other and the outer faces 19 and 20 of
the lower portions 9 and 10 of the first and second side members 7
and 8 disposed away from each other.
[0020] As shown in FIG. 1, in the preferred embodiment, the upper
portion 11 of the first side member 7 is formed with an outer face
25 disposed away from the supported member 2 and the upper portion
11 of the first side member 7 is formed with an inner face 23 that
is disposed toward the supported member 2. In the preferred
embodiment, the upper portion 11 of the first side member 7 is
adapted so that the inner face 23 of the upper portion 11 of the
first side member 7 does not register with portions of a first side
face 21 of the supported member 2.
[0021] In the preferred embodiment, the upper portion 12 of the
second side member 8 is formed with an outer face 26 disposed away
from the supported member 2 and the upper portion 12 of the second
side member 8 is formed with an inner face 24 that is disposed
toward the supported member 2. In the preferred embodiment, the
upper portion 12 of the second side member 8 is adapted so that the
inner face 24 of the upper portion 12 of the second side member 8
does not register with portions of a second side face 22 of the
supported member 2.
[0022] As is best shown if FIG. 3, in the preferred embodiment, the
inner face 17 of the lower portion 9 of the first side member 7 and
the inner face 23 of the upper portion 11 of the first side member
7 form a reflex angle 27 that is greater than 180 degrees that is
bounded by said inner face 17 of the lower portion 9 of the first
side member 7, sweeps through said supported member 2 when it is
held by the hanger 1 and is bounded by the inner face 23 of the
upper portion 11 of the first side member 7. Similarly, in the
preferred embodiment, the outer face 19 of the lower portion 9 of
the first side member 7 and the outer face 25 of the upper portion
11 of the first side member 7 form an obtuse angle 29 that is
bounded by said outer face 19 of the lower portion 9 of the first
side member 7, sweeps away from the hanger 1 and is bounded by the
outer face 25 of the upper portion 11 of the first side member
7.
[0023] As is best shown in FIG. 3, in the preferred embodiment, the
inner face 18 of the lower portion 10 of the second side member 8
and the inner face 24 of the upper portion 12 of the second side
member 8 form a reflex angle 28 that is greater than 180 degrees
and is bounded by said inner face 18 of the lower portion 10 of the
second side member 8, sweeps through said supported member 2 when
it is held by the hanger 1 and is bounded by the inner face 24 of
the upper portion 12 of the second side member 8. Similarly, in the
preferred embodiment, the outer face 20 of the lower portion 10 of
the second side member 8 and the outer face 26 of the upper portion
12 of the second side member 8 form an obtuse angle 30 that is
bounded by said outer face 20 of the lower portion 10 of the second
side member 8, sweeps away from the hanger 1, and is bounded by the
outer face 26 of the upper portion 12 of the second side member
8.
[0024] As is best shown in FIG. 5, in the preferred embodiment, the
first back flange 13 is formed with an exposed face 31 and a
registration or attachment face 33. In the preferred embodiment,
when the hanger 1 is attached to a supporting member 3, a
substantial portion of the registration face 33 of the first back
flange 13 is adapted to register with an attachment face 47 of the
supporting member 3.
[0025] In the preferred embodiment, the second back flange 14 is
formed with an exposed face 32 and a registration or attachment
face 34. In the preferred embodiment, when the hanger 1 is attached
to a supporting member 3, a substantial portion of the registration
face 34 of the second back flange 14 is adapted to register with
the attachment face 47 of the supporting member 3.
[0026] In the preferred embodiment, openings 48 are provided in the
first and second back flanges 13 and 14 to receive fasteners 15 for
attachment of the hanger 1 to the holding or supporting member 3.
In the preferred embodiment, the fasteners 15 for attaching the
first and second back flanges 13 and 14 to the supported member 3
are self-drilling, threaded fasteners. Also, preferably, these
fasteners 15 are each formed with a head 49, and when the fasteners
15 are driven into the supporting member 3 the heads 49 of the
fasteners 15 abut against the exposed faces 31 and 32 of the first
and second back flanges 13 and 14 and the registration faces 33 and
34 of the first and second back flanges 13 and 14 are pulled by the
driving of the fasteners 15 towards the attachment face of the
supporting member 47.
[0027] As shown in FIG. 4, In the preferred embodiment, the first
and second back flanges 13 and 14 are orthogonally disposed to the
upper and lower portions 9, 10, 11 and 12 of the first and second
side members 7 and 8.
[0028] Also, in the preferred embodiment, the exposed face 31 of
the first back flange 13 and the inner face 23 of the upper portion
11 of the first side member 7 form a right angle 35 of 90 degrees
that is bounded by the inner face 23 of the upper portion 11 of the
first side member 7 and is bounded by the exposed face 31 of the
first back flange 13.
[0029] Similarly, in the preferred embodiment, the registration
face 33 of the first back flange 13 and the outer face 25 of the
upper portion 11 of the first side member 7 form an angle 37 of 270
degrees that is bounded by the outer face 25 of the upper portion
11 of the first side member 7 sweeps through the supporting member
3 when the hanger 1 is attached to the supporting member 3 and is
bounded by the registration 33 face of the first back flange
13.
[0030] Also, in the preferred embodiment, the exposed face 32 of
the second back flange 14 and the inner face 24 of the upper
portion 12 of the second side member 8 form a right angle 36 of 90
degrees that is bounded by the inner face 24 of the upper portion
12 of the second side member 8 and is bounded by the exposed face
32 of the second back flange 14. Similarly, in the preferred
embodiment, the registration face 34 of the second back flange 14
and the outer face 26 of the upper portion 12 of the second side
member 8 form an angle of 270 degrees that is bounded by the outer
face 26 of the upper portion 12 of the second side member 8 sweeps
through the supporting member 3 when the hanger 1 is attached to
the supporting member 3 and is bounded by the registration face 34
of the second back flange 14.
[0031] In the preferred embodiment, the first and second back
flanges 13 and 14 are separate members that are not connected to
each other except through their respective connections to the first
and second side members 7 and 8 which are in turn connected to the
seat member 4.
[0032] In the preferred embodiment, the first back flange 13 is
formed with an opposing free edge 51, and the second back flange 14
is formed with an opposing free edge 52. In the preferred
embodiment the opposing edges 51 and 52 of the first and second
back flanges 13 and 14 are spaced apart from each other.
[0033] As shown in FIG. 2, in the preferred embodiment, the first
and second side members 7 and 8 extend a substantial distance above
the seat member 4, providing substantial lateral support to the
supported member 2.
[0034] In the preferred embodiment, the upper portions 11 and 12 of
the first and second side members 7 and 8 are separated from and
differentiated from the lower portions 9 and 10 of the first and
second side members 7 and 8 by transverse bends 39 and 40 in the
first and second side members 7 and 8. In the preferred embodiment,
these transverse bends 39 and 40 in the first and second side
members 7 and 8 create reflex angles between 190 and 197 degrees
between the inner faces 17 and 23 and 18 and 24 of the upper and
lower portions 9 and 11 and 10 and 12 of the first and second side
members 7 and 8.
[0035] As shown in FIG. 3, in the preferred embodiment, the upper
portions 11 and 12 of the first and second side members 7 and 8
extend a substantial distance away from the seat member 4 and above
the transverse bends 39 and 40 that separate the upper portions 11
and 12 of the first and second side members 7 and 8 from the lower
portions 9 and 10 of the first and second side members 7 and 8.
[0036] In the preferred embodiment, the portions of the first and
second back flanges 13 and 14 that are disposed between the upper
portions 11 and 12 of the first and second side flanges 7 and 8 and
do not extend above the side flanges 7 and 8 are considered the
lower portions 41 and 42 of the first and second back flanges 13
and 14.
[0037] In the preferred embodiment, the lower portions 41 and 42 of
the first and second back flanges 13 and 14 between the upper
portions 11 and 12 of the first and second side members 7 and 8
span a width 53 that is greater than the width 54 between the lower
portions 9 and 10 of the first and second side members 7 and 8.
[0038] In the preferred embodiment, the upper portions 11 and 12 of
the first and second side members 7 and 8 span a maximum selected
width 53, and the lower portions 9 and 10 of the first and second
side members 7 and 8 span a second width 54 and the maximum
selected width 53 between the upper portions 11 and 12 of the first
and second side members 7 and 8 is greater than the width 54
between the lower portions 9 and 10 of the first and second side
members 7 and 8.
[0039] In the preferred embodiment, the lower portions 41 and 42 of
the back flanges 13 and 14 do not overlap each other, and the lower
portions 41 and 42 are adapted to have multiple fasteners 15 driven
through each of them into the supporting member 3. In the preferred
embodiment, the second back member 14 is parallel and substantially
aligned with the first back member 13.
[0040] In the preferred embodiment, the lower portions 41 and 42 of
the first and second back flanges 13 and 14 are only attached to
the first and second side members 7 and 8 at the upper portions 11
and 12 of the first and second side members 7 and 8 above the
transverse bend lines 39 and 40. In the preferred embodiment, the
lower portions 41 and 42 of the first and second back flanges 13
and 14 are connected to the upper portions 11 and 12 of the first
and second side members 7 and 8 close to the transverse bends 39
and 40 in the first and second side members 7 and 8.
[0041] Preferably, the hanger 1 of the present invention is
constructed from a single blank member of galvanized sheet steel (7
Gauge G90) without requiring any welding or painting. In the
preferred embodiment, the hanger 1 is formed by bending along
substantially straight bend lines and all bends have a radius of
one thickness of the metal.
[0042] In the preferred embodiment, the hanger 1 is designed for
attachment to a vertically elongated member 55 that is part of the
larger supporting member 3 such as a webbed truss. In the preferred
embodiment, the vertically disposed, elongated member is a web
member 55 of the truss. In the preferred embodiment, the vertically
disposed, elongated member 55 of the supporting truss has a
selected maximum width 56 for the receipt of fasteners 15 for
attaching the hanger 1 to the supporting member.
[0043] In the preferred embodiment, the first and second back
flanges 13 and 14 are disposed a selected distance above the seat
member 4 of the hanger 1. When the supporting member 3 is a truss
formed with a bottom chord 57, a top chord and web members 55
connecting the top and bottom chords, it is desirable to not
connect the hanger 1 to the bottom chord 57 of the truss 3. In the
preferred embodiment of the hanger 1 which is designed for
attaching to a truss 3 having a bottom chord 57 from wood having a
nominal height of 6'', the first and second back flanges 13 and 14
are preferably formed a selected distance above the seat member 4
and the lowest of the openings 48 in the first and second back
members 13 and 14 for receiving a fastener 15 is disposed above 6''
from the seat member 4. In the preferred embodiment the supporting
member 3 and the supported member 2 are multi-ply girder trusses
made from Southern Pine or an equivalent, and the fasteners used
are Simpson Strong-Drive SDS 1/4.times.3 fasteners. The minimum
width of the vertical web member of the 55 of the supporting member
3 is nominally 6 inches in width as in a standard 2.times.6 piece
of US lumber.
[0044] The hanger 1 of the preferred embodiment is formed on an
progressive die with minimal waste of the sheet metal from which
the blanks are made by taking a sheet metal blank, bending the
first and second side members 7 and 8 downwardly from the seat
member 4, bending the upper portions 11 and 12 of the first and
second side members 7 and 8 upwardly from the lower portions 9 and
10 of the first and second side members 7 and 8, and then bending
the first and second back members 13 and 14 downwardly from the
upper portions 11 and 12 of the first and second side members 7 and
8. Openings 45 and 48 are provided in the hanger 1 for receiving
fasteners 15 and 16 at designated points.
* * * * *